How to make ProgressIndicator wide as the window

[realroot2185]

appwindow.slint:

import { TextEdit, Button, VerticalBox, ProgressIndicator } from "std-widgets.slint";

export component App inherits Window {
    width: 400px;
    height: 300px;
    //horizontal-stretch: 1;
    
    in-out property<float> prog: 0.42;
    callback request-toggle();
    background: black;
    VerticalBox {
        bar := ProgressIndicator {
        	//horizontal-stretch: 1;
        	width: root.width;
        	height: root.height;
        	progress: prog;
    	}
        Button {
            text: "Increase value";
            clicked => {
                root.request-toggle();
            }
        }
    }
}

The bar does not change when I resize the window.

If I use preferred-width/height for component App it has flickering and when resizing behaves strangely.

[hunger]

Try removing width and height of ProgressIndicator.

[realroot2185]

I needed to remove them too for App.
Otherwise when resizing the window ProgressIndicator is not updated.